package com.hbx.residential_service.utils;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class UserLoginInterceptor implements HandlerInterceptor {
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception{

    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception{

    }

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception{
        HttpSession session = request.getSession();
        if(session.getAttribute("username")!=null) {
            // 登录成功不拦截
            return true;
        }else {
            // 拦截后进入登录页面
            response.sendRedirect(request.getContextPath()+"/user/login.do");
            return false;
        }
    }
}
